An active day is when any amount of data is received from that station.
| Identifier | Feb 10 | Mar 10 | Apr 10 | May 10 | Jun 10 | Jul 10 | Aug 10 | Sep 10 | Oct 10 | Nov 10 | Dec 10 | Jan 11 | Feb 11 | Mar 11 | Apr 11 | May 11 | Jun 11 | Jul 11 | Aug 11 | Sep 11 | Oct 11 | Nov 11 | Dec 11 | Jan 12 |
| CW1120 | 28 | 31 | 29 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 31 | 31 | 27 | 30 | 30 | 31 | 30 | 30 | 31 | 29 | 31 | 29 | 31 | 31 |
| CW1172 | 28 | 31 | 29 | 31 | 30 | 22 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 26 | 28 | 30 | 31 | 31 |
| CW3685 | 28 | 31 | 21 | 31 | 30 | 31 | 30 | 22 | 31 | 30 | 27 | 27 | 28 | 31 | 30 | 31 | 23 | 30 | 31 | 30 | 31 | 30 | 31 | 31 |
| CW4674 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 |
| CW4795 | 28 | 31 | 29 | 21 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| CW5586 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 27 | 31 |
| CW5735 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 |
| CW6424 | 28 | 31 | 24 | 31 | 30 | 28 | 30 | 27 | 26 | 30 | 31 | 31 | 28 | 30 | 30 | 30 | 30 | 31 | 14 | 0 | 0 | 0 | 0 | 0 |
| CW7138 | 11 | 23 | 26 | 20 | 17 | 25 | 25 | 8 | 10 | 10 | 15 | 10 | 5 | 2 | 6 | 6 | 3 | 4 | 1 | 1 | 0 | 0 | 0 | 0 |
| CW7171 | 0 | 0 | 0 | 0 | 0 | 19 | 31 | 29 | 30 | 30 | 31 | 30 | 28 | 31 | 30 | 31 | 28 | 29 | 31 | 30 | 31 | 30 | 31 | 31 |
| CW7352 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 30 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 28 | 29 | 31 | 30 | 31 | 31 |
| CW7747 | 28 | 31 | 30 | 31 | 30 | 31 | 28 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 19 | 31 | 30 | 31 | 26 | 0 | 0 |
| CW7849 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 |
| CW8035 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 26 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 30 |
| CW8398 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 30 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 27 | 30 | 31 | 31 |
| DW0142 | 28 | 30 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 29 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 26 | 28 | 28 | 31 | 31 |
| DW0534 | 28 | 31 | 30 | 31 | 28 | 19 | 6 | 19 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 21 | 31 | 27 | 0 | 12 |
| DW0796 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 29 | 30 | 31 | 30 | 31 | 31 |
| DW1002 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 |
| DW1449 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 21 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 |
| DW1712 | 10 | 0 | 21 | 31 | 12 | 29 | 31 | 30 | 31 | 19 | 0 | 0 | 23 | 31 | 26 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW2023 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 |
| DW2098 | 0 | 0 | 0 | 0 | 16 | 6 | 20 | 2 | 25 | 21 | 18 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW2391 | 10 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 23 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW2654 | 16 | 13 | 16 | 10 | 4 | 3 | 3 | 1 | 1 | 3 | 7 | 3 | 4 | 2 | 2 | 6 | 1 | 1 | 0 | 2 | 0 | 1 | 2 | 4 |
| DW2794 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 21 | 27 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 29 | 24 | 31 | 30 | 31 | 31 |
| DW2872 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 29 | 28 | 31 | 30 | 31 | 30 | 24 | 24 |
| DW3125 | 0 | 0 | 20 | 31 | 30 | 29 | 31 | 30 | 31 | 18 | 31 | 12 | 18 | 31 | 13 | 26 | 30 | 24 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW4983 | 0 | 0 | 5 | 16 | 9 | 6 | 9 | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 1 | 0 |
| DW5843 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 16 | 0 | 29 | 7 | 0 | 0 | 0 | 0 | 0 |
| DW5956 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 28 | 9 | 0 | 0 | 0 | 0 | 0 |
| DW6321 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 31 | 31 |
| DW6565 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW6690 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 23 | 27 | 30 | 28 | 8 | 6 | 25 | 30 | 26 | 30 | 29 | 31 |
| DW6743 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 |
| DW6784 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 16 | 31 | 28 | 30 | 31 | 30 | 31 | 31 |
| DW6786 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW6882 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW7076 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 31 | 30 | 26 | 29 | 31 | 31 | 23 | 31 | 30 | 31 | 31 |
| DW8102 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 31 | 30 | 31 | 30 | 31 | 31 |
| DW8131 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 23 | 28 | 31 | 30 | 31 | 31 |
| DW8294 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 30 | 31 | 30 | 31 | 31 |
| DW8364 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 |
| SM0HPL-5 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 1 | 21 | 22 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 29 | 31 | 30 | 31 | 29 | 31 | 31 |
| SM0HXB | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SM2GSR-2 | 28 | 31 | 30 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 29 | 31 | 29 | 31 | 30 | 31 | 31 |
| SM2JQV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SM2Z | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 31 | 30 | 30 | 24 | 24 | 31 | 30 | 31 | 31 |
| SM4IVE-5 | 0 | 0 | 0 | 0 | 0 | 2 | 31 | 30 | 30 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 29 | 31 | 29 | 31 | 29 | 31 | 31 |
| SM4WDQ | 16 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SM5EZN-5 | 0 | 0 | 7 | 14 | 19 | 0 | 3 | 14 | 17 | 13 | 3 | 10 | 18 | 10 | 9 | 10 | 10 | 1 | 8 | 10 | 12 | 3 | 3 | 0 |
| SM6KIW-1 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 16 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| SM6NYJ-5 | 28 | 30 | 28 | 19 | 17 | 27 | 14 | 0 | 4 | 16 | 8 | 0 | 1 | 0 | 3 | 29 | 29 | 16 | 27 | 29 | 31 | 30 | 31 | 28 |
| SM7GXQ | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 |
| SM7WZA | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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